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I found it quiet disturbing that disciplines such as anthropology, psychology, etc., are forced to adopt the linear science model in order to gain legitimacy. Science is about making new discoveries, and learning new things. Its focus should not be about simply regurgitating facts. Sometimes times people appear to waste time trying to prove and re-prove things that are well established. We should want to search out what is new and unknown and strive for a better understanding of what we observe.

        Our model of the nervous system appears to have become more complete but it has a way to go. Our model can account for the basic underlying structure in that all creatures are able to get and receive inputs from outputs.  It does not do a very good job of accounting for marked differences between different organisms. The model needs to be able to explain what separates organisms from one another. What allows humans to communicate at a more advanced level then amphibians? We have the same underlying structures and we both receive inputs and outputs.  Is it more than the size of the brain?